23517820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 28898180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 311, 380, 398, 622, 796, 995, 1244, 1555, 1990, 3110, 3781, 3980, 5909, 6220, 7562, 11818, 15124, 18905, 23636, 29545, 37810, 59090, 61889, 75620, 118180, 123778, 247556, 309445, 618890, 1175891, 1237780, 2351782, 4703564, 5879455, 11758910, 23517820]

約数ペア:

[(1, 23517820), (2, 11758910), (4, 5879455), (5, 4703564), (10, 2351782), (19, 1237780), (20, 1175891), (38, 618890), (76, 309445), (95, 247556), (190, 123778), (199, 118180), (311, 75620), (380, 61889), (398, 59090), (622, 37810), (796, 29545), (995, 23636), (1244, 18905), (1555, 15124), (1990, 11818), (3110, 7562), (3781, 6220), (3980, 5909)]